Slant Six Stock cam specs

Can't directly answer your question but I would expect around 110-112. The numbers posted above work out to 111 degrees.

Lifts changed from early to later cams, around 1971 I think. Early valve lift was .375" intake, and the later cam moved it up to .410".

The 1.4 rocker ratio thing is not making sense.... my /6 has 1.5 ratio rockers.